<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="./demo.js"></script>
</head>
<body>
    <input  id="file" type="file">
    <script>
        const ofile = document.getElementById("file")
        ofile.onchange = function(e){
            console.log(e.files);
            console.log(e.target.files[0]);
        }
        
    </script>
</body>
</html>